Otto Fritz Meyerhof

Otto Fritz Meyerhof (1884–1951) was a German-born physician and biochemist who studied muscle metabolism and shared the 1922 Nobel Prize in Physiology or Medicine.

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Archibald Vivian Hill: A British physiologist who shared the 1922 Nobel Prize for discoveries about heat production in muscles. Hill shared the prize with Meyerhof for complementary research on muscle physiology.
Glycolysis: A sequence of reactions that converts glucose into pyruvate while capturing some energy as ATP. Meyerhof traced how muscle carbohydrate breakdown produces lactic acid through glycolytic reactions.
Exercise physiology: The study of how the body responds and adapts to physical activity. Meyerhof’s work on muscle chemistry helped connect exercise with measurable metabolic changes.
1922 Nobel Prize in Physiology or Medicine: The Nobel Prize awarded to Archibald Vivian Hill and Otto Fritz Meyerhof for discoveries relating to muscle heat and metabolism. The award recognized Meyerhof’s experimental account of chemical changes in muscle.
Gustav Embden: A German biochemist whose research helped establish the sequence of reactions in carbohydrate metabolism. Embden’s work on glycolysis complemented Meyerhof’s studies of muscle metabolism.
Lactic acid: An organic acid produced when cells convert pyruvate to lactate, regenerating NAD⁺ for glycolysis. Meyerhof measured its formation in working muscle and its fate during recovery.
Lactate threshold: An exercise intensity above which blood lactate rises faster than the body can clear it. It applies lactate measurement to exercise performance, a practical extension of muscle-metabolism research.
Embden–Meyerhof–Parnas pathway: The metabolic pathway that converts glucose to pyruvate, commonly known as glycolysis. Meyerhof’s name marks his role in establishing the pathway’s reactions in muscle.
Otto Warburg: A German biochemist who studied cellular respiration and received the 1931 Nobel Prize in Chemistry. Warburg’s research on cellular energy overlapped with the biochemical questions Meyerhof pursued.
Oxygen debt: The excess oxygen consumption after exercise that helps restore the body to its resting state. Meyerhof connected post-contraction oxygen use with the removal and oxidation of lactate.